guide me which type of question can get more reply and attract the people

Have you tried drinking more water?

depends who you want to attract

American politics, if you dare

Something we all can relate to. Popular or controversial.

change your age/gender to F18-21 and post how horny you are, and put up a sexy avatar too..the pervs will bombard you

Am I attractive? if you are an 18-20 something woman seemed to work on EP.
Politics seems to spark some debate and religion..

I just say what pops into my demented head, sometimes I get a lot of answers and sometimes I don't.

Talking about how another user did this or that.

tminus good answer thanks intelligent